Method and apparatus for cooling
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United States of America Patent
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Dec 4, 2012
Grant Date -
Oct 9, 2008
app pub date -
Jun 11, 2008
filing date -
Aug 15, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A method of calculating net sensible cooling capacity of a cooling unit includes measuring a discharge pressure from of fluid from a compressor and a suction pressure from an evaporator, calculating a condensing temperature of fluid flowing from the compressor and an evaporating temperature of fluid flowing from the evaporator, calculating a mass flow rate of fluid flowing from the compressor, calculating enthalpy of fluid flowing from the compressor, of fluid flowing from the thermal expansion valve, and of fluid flowing from the evaporator, calculating a mass flow rate of fluid flowing through the hot gas bypass valve, and calculating net sensible cooling capacity. Embodiments of cooling units and other methods are further disclosed.
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